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/*
* Copyright (C) 2009 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef EditorClientImpl_h
#define EditorClientImpl_h
#include "EditorClient.h"
#include "Timer.h"
#include <wtf/Deque.h>
namespace WebCore {
class HTMLInputElement;
}
namespace WebKit {
class WebViewImpl;
class EditorClientImpl : public WebCore::EditorClient {
public:
EditorClientImpl(WebViewImpl* webView);
virtual ~EditorClientImpl();
virtual void pageDestroyed();
virtual bool shouldShowDeleteInterface(WebCore::HTMLElement*);
virtual bool smartInsertDeleteEnabled();
virtual bool isSelectTrailingWhitespaceEnabled();
virtual bool isContinuousSpellCheckingEnabled();
virtual void toggleContinuousSpellChecking();
virtual bool isGrammarCheckingEnabled();
virtual void toggleGrammarChecking();
virtual int spellCheckerDocumentTag();
virtual bool isEditable();
virtual bool shouldBeginEditing(WebCore::Range*);
virtual bool shouldEndEditing(WebCore::Range*);
virtual bool shouldInsertNode(WebCore::Node*, WebCore::Range*, WebCore::EditorInsertAction);
virtual bool shouldInsertText(const WTF::String&, WebCore::Range*, WebCore::EditorInsertAction);
virtual bool shouldDeleteRange(WebCore::Range*);
virtual bool shouldChangeSelectedRange(WebCore::Range* fromRange,
WebCore::Range* toRange,
WebCore::EAffinity,
bool stillSelecting);
virtual bool shouldApplyStyle(WebCore::CSSStyleDeclaration*, WebCore::Range*);
virtual bool shouldMoveRangeAfterDelete(WebCore::Range*, WebCore::Range*);
virtual void didBeginEditing();
virtual void respondToChangedContents();
virtual void respondToChangedSelection();
virtual void didEndEditing();
virtual void didWriteSelectionToPasteboard();
virtual void didSetSelectionTypesForPasteboard();
virtual void registerCommandForUndo(PassRefPtr<WebCore::EditCommand>);
virtual void registerCommandForRedo(PassRefPtr<WebCore::EditCommand>);
virtual void clearUndoRedoOperations();
virtual bool canUndo() const;
virtual bool canRedo() const;
virtual void undo();
virtual void redo();
virtual const char* interpretKeyEvent(const WebCore::KeyboardEvent*);
virtual bool handleEditingKeyboardEvent(WebCore::KeyboardEvent*);
virtual void handleKeyboardEvent(WebCore::KeyboardEvent*);
virtual void handleInputMethodKeydown(WebCore::KeyboardEvent*);
virtual void textFieldDidBeginEditing(WebCore::Element*);
virtual void textFieldDidEndEditing(WebCore::Element*);
virtual void textDidChangeInTextField(WebCore::Element*);
virtual bool doTextFieldCommandFromEvent(WebCore::Element*, WebCore::KeyboardEvent*);
virtual void textWillBeDeletedInTextField(WebCore::Element*);
virtual void textDidChangeInTextArea(WebCore::Element*);
virtual void ignoreWordInSpellDocument(const WTF::String&);
virtual void learnWord(const WTF::String&);
virtual void checkSpellingOfString(const UChar*, int length,
int* misspellingLocation,
int* misspellingLength);
virtual void checkGrammarOfString(const UChar*, int length,
WTF::Vector<WebCore::GrammarDetail>&,
int* badGrammarLocation,
int* badGrammarLength);
virtual WTF::String getAutoCorrectSuggestionForMisspelledWord(const WTF::String&);
virtual void updateSpellingUIWithGrammarString(const WTF::String&, const WebCore::GrammarDetail&);
virtual void updateSpellingUIWithMisspelledWord(const WTF::String&);
virtual void showSpellingUI(bool show);
virtual bool spellingUIIsShowing();
virtual void getGuessesForWord(const WTF::String& word,
const WTF::String& context,
WTF::Vector<WTF::String>& guesses);
virtual void willSetInputMethodState();
virtual void setInputMethodState(bool enabled);
// Shows the form autofill popup for |node| if it is an HTMLInputElement and
// it is empty. This is called when you press the up or down arrow in a
// text-field or when clicking an already focused text-field.
// Returns true if the autofill popup has been scheduled to be shown, false
// otherwise.
virtual bool showFormAutofillForNode(WebCore::Node*);
// Notification that the text changed due to acceptance of a suggestion
// provided by an Autocomplete popup. Having a separate callback in this
// case is a simple way to break the cycle that would otherwise occur if
// textDidChangeInTextField was called.
virtual void onAutocompleteSuggestionAccepted(WebCore::HTMLInputElement*);
private:
void modifySelection(WebCore::Frame*, WebCore::KeyboardEvent*);
// Triggers autofill for an input element if applicable. This can be form
// autofill (via a popup-menu) or password autofill depending on the
// input element. If |formAutofillOnly| is true, password autofill is not
// triggered.
// |autofillOnEmptyValue| indicates whether the autofill should be shown
// when the text-field is empty.
// If |requiresCaretAtEnd| is true, the autofill popup is only shown if the
// caret is located at the end of the entered text.
// Returns true if the autofill popup has been scheduled to be shown, false
// otherwise.
bool autofill(WebCore::HTMLInputElement*,
bool formAutofillOnly, bool autofillOnEmptyValue,
bool requiresCaretAtEnd);
// Called to process the autofill described by m_autofillArgs.
// This method is invoked asynchronously if the caret position is not
// reflecting the last text change yet, and we need it to decide whether or
// not to show the autofill popup.
void doAutofill(WebCore::Timer<EditorClientImpl>*);
void cancelPendingAutofill();
// Returns whether or not the focused control needs spell-checking.
// Currently, this function just retrieves the focused node and determines
// whether or not it is a <textarea> element or an element whose
// contenteditable attribute is true.
// FIXME: Bug 740540: This code just implements the default behavior
// proposed in this issue. We should also retrieve "spellcheck" attributes
// for text fields and create a flag to over-write the default behavior.
bool shouldSpellcheckByDefault();
WebViewImpl* m_webView;
bool m_inRedo;
typedef Deque<RefPtr<WebCore::EditCommand> > EditCommandStack;
EditCommandStack m_undoStack;
EditCommandStack m_redoStack;
// Whether the last entered key was a backspace.
bool m_backspaceOrDeletePressed;
// This flag is set to false if spell check for this editor is manually
// turned off. The default setting is SpellCheckAutomatic.
enum {
SpellCheckAutomatic,
SpellCheckForcedOn,
SpellCheckForcedOff
};
int m_spellCheckThisFieldStatus;
// Used to delay autofill processing.
WebCore::Timer<EditorClientImpl> m_autofillTimer;
struct AutofillArgs {
RefPtr<WebCore::HTMLInputElement> inputElement;
bool autofillFormOnly;
bool autofillOnEmptyValue;
bool requireCaretAtEnd;
bool backspaceOrDeletePressed;
};
OwnPtr<AutofillArgs> m_autofillArgs;
};
} // namespace WebKit
#endif
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